Rob Neyer tells us why we should be watching R.J. Swindle:

Nashville’s R.J. Swindle has been hammered in a couple of quick trials in the majors (first with the Phillies last season, then with the Brewers this season). But he’s left-handed and he throws a pitch I don’t think I’ve ever seen before, a sidearm curveball that clocks around 50 on the radar gun. You really have to see it to believe it, and I hope you get the chance (you should, based on Swindle’s numbers anyway).

That’s his slowest pitch, as he has a fastball in the 80s and a slider in the 70s. Since he’s with Cleveland now, Doug Jones pops to mind. Jones would start batters with a 70 mph pitch, and then just keep getting slower. It took him a while to get to the majors, but he had some very effective years for Cleveland.